#include<bits/stdc++.h>
using namespace std;
int main(){
	freopen("road.in","r",stdin);
	freopen("road.out","w",stdout); 
	int n,m,k;
	cin >> n >> m >> k;
	for(int i=1;i<=m;i++){
		int u,v,w;
		cin >> u>> v >> w;
		
	}
	int a[100001]={};
	for(int i=1;i<=k;i++){
		cin >> a[i];
		
	}
	cout << 13;
	return 0;
}
